package com.sdau.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.sdau.reggie.common.R;
import com.sdau.reggie.entity.User;
import com.sdau.reggie.service.UserService;
import com.sdau.reggie.utils.ValidateCodeUtils;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpSession;
import java.util.Map;
import java.util.concurrent.TimeUnit;

@RestController
@RequestMapping("/user")
@Slf4j
public class UserController {

    @Autowired
    private UserService userService;

    @Autowired
    private RedisTemplate redisTemplate;

    /**
     * 发送手机验证码
     *
     * @param user
     * @return
     */
    @PostMapping("/sendMsg")
    public R<String> sendMsg(@RequestBody User user, HttpSession session) {
        //获取手机号
        String phone = user.getPhone();

        if (!StringUtils.isEmpty(phone)) {
            //生成随机的4位验证码
            String code = ValidateCodeUtils.generateValidateCode(4).toString();
            log.info("code={}", code);
            //调用阿里云提供的短信服务API完成发送短信
            //SMSUtils.sendMessage("阿里云短信测试","SMS_154950909",phone,code);
            //需要将生成的验证码保存到Session
            // session.setAttribute(phone, code);
            //将生成的验证码保存到Redis中,设置有效期为五分钟
            redisTemplate.opsForValue().set(phone, code, 5, TimeUnit.MINUTES);


            return R.success("手机验证码短信发送成功");
        }
        return R.error("短信发送失败");

    }

    /**
     * 登录功能
     *
     * @param map
     * @param session
     * @return
     */
    @PostMapping("/login")       //使用map也可以接收json数据
    public R<User> login(@RequestBody Map map, HttpSession session) {
        log.info(map.toString());

        //获取手机号
        String phone = map.get("phone").toString();
        //获取验证码
        String code = map.get("code").toString();
        //从session中获取保存的验证码
        //  String genCode = session.getAttribute(phone).toString();
        String genCode = (String) redisTemplate.opsForValue().get(phone);

        //进行验证码的比对(页面提交的验证码和session中保存的验证码比对)
        if (genCode.equals(code)) {
            //如果能够比对成功，说明登录成功
            LambdaQueryWrapper<User> lqw = new LambdaQueryWrapper<>();
            lqw.eq(User::getPhone, phone);
            User user = userService.getOne(lqw);

            if (user == null) {
                //判断当前手机号对应的用户是否为新用户，如果是新用户就自动完成注册
                user = new User();
                user.setPhone(phone);
                user.setStatus(1);
                userService.save(user);
            }

            session.setAttribute("user", user.getId());

            //如果用户登录成功，删除Redis中缓存的验证码
            redisTemplate.delete(phone);
            return R.success(user);
        }
        return R.error("登录失败");

    }

}
